CONDENSED CONSOLIDATED INCOME STATEMENTS - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Income Statement [Abstract] | ||||
| Operating revenues | $ 1,364.8 | $ 1,201.9 | $ 3,745.4 | $ 3,391.8 |
| Operating expenses | ||||
| Cost of sales | 453.5 | 401.2 | 1,255.4 | 1,127.1 |
| Other operation and maintenance | 312.5 | 271.2 | 883.1 | 773.1 |
| Depreciation and amortization | 169.8 | 160.4 | 502.6 | 467.6 |
| Property and revenue taxes | 31.8 | 29.7 | 97.6 | 90.2 |
| Total operating expenses | 967.6 | 862.5 | 2,738.7 | 2,458.0 |
| Operating income | 397.2 | 339.4 | 1,006.7 | 933.8 |
| Other income, net | 33.0 | 15.5 | 104.9 | 38.6 |
| Interest expense | 134.0 | 121.3 | 380.2 | 367.3 |
| Other expense | (101.0) | (105.8) | (275.3) | (328.7) |
| Income before income taxes | 296.2 | 233.6 | 731.4 | 605.1 |
| Income tax expense | 44.1 | 36.2 | 93.7 | 92.5 |
| Net income | 252.1 | 197.4 | 637.7 | 512.6 |
| Preferred stock dividend requirements | 0.3 | 0.3 | 0.9 | 0.9 |
| Net income attributed to common shareholder | $ 251.8 | $ 197.1 | $ 636.8 | $ 511.7 |
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- Definition The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after tax of income (loss) from continuing operations attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of interest expense classified as other. No definition available.
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- References No definition available.
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- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition All taxes not related to income of the entity or excise or sales taxes levied on the revenue of the entity that are not reported elsewhere. These taxes could include production, real estate, personal property, and pump tax. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of operating expense of regulated operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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